Multi-section leg pressing device for physical training

Abstract

The invention discloses a multi-section type leg pressing device for physical training, belongs to the technical field of physical training, and aims to solve the problems that leg muscles are prone to exhaustion and are not prone to emergency disengagement when a user carries out long-time leg pressing training, the multi-section type leg pressing device comprises a supporting frame, and a controller is arranged on one side of the supporting frame; two lifting assemblies are oppositely arranged in the supporting frame, clamping assemblies are arranged in the two lifting assemblies, damping assemblies are arranged in the two lifting assemblies, two sliding assemblies are oppositely arranged in the supporting frame, the clamping assemblies are connected with the sliding assemblies in a clamped mode, detection assemblies are arranged in the sliding assemblies, and leg pressing rods are arranged on one sides of the detection assemblies. A first sponge sleeve is fixedly connected to the outer wall of the leg pressing rod, buffering assemblies are arranged in the two sliding assemblies, two adjusting assemblies are oppositely arranged in the supporting frame, and a protection assembly is arranged at one end of each adjusting assembly. According to the device, an emergency disengaging program can be automatically started conveniently when a user is exhausted during training and cannot actively disengage.

Description

Technical Field

[0001] This invention relates to the field of sports training technology, specifically to a multi-stage leg-pressing device for sports training. Background Technology

[0002] Multi-stage leg stretching devices for sports training are sports aids for leg flexibility training. They mainly provide a stable support structure to help users complete leg stretching exercises, thereby improving leg muscle flexibility, joint mobility, and body coordination. The multi-stage leg stretching device has a height adjustment mechanism that allows users to adjust the leg stretching bar to different height levels according to their training stage, height, body type, and flexibility level, thus meeting diverse training needs.

[0003] When using current multi-stage leg press devices, leg muscles are prone to exhaustion after prolonged leg press training. At this time, the leg muscles are unable to support the body to complete the movement of lifting the leg and detaching from the leg press bar, making it difficult to detach in an emergency. This can lead to overstretching, causing soreness and spasms. At the same time, if the user forcibly detaches from the leg press bar, they may subconsciously adjust their body posture, causing the body to lose balance and tilt to the sides, increasing the risk of falling and injury, and thus affecting the training effect. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-stage leg-pressing device for sports training. By using this invention, the problem in the background mentioned above is that users' leg muscles are prone to exhaustion during long-term leg-pressing training, and it is not easy to disengage in an emergency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A multi-stage leg-pressing device for sports training includes a support frame, a controller on one side of the support frame, two lifting components arranged opposite each other inside the support frame, each lifting component having a locking component and a damping component, two sliding components arranged opposite each other inside the support frame, the locking components engaging with the sliding components, a detection component inside the sliding components, a leg-pressing rod on one side of the detection component, a first sponge sleeve fixedly connected to the outer wall of the leg-pressing rod, a buffer component inside each of the two sliding components, and two adjusting components arranged opposite each other inside the support frame, a protective component at one end of each adjusting component.

[0006] Furthermore, the lifting assembly includes a servo motor installed in the support frame, the output end of the servo motor is fixedly connected to a threaded rod, the threaded rod is rotatably connected to the inner wall of the support frame, the outer wall of the threaded rod is threadedly connected to a threaded block, a sliding groove is opened on one side of the support frame, and the threaded block is slidably connected to the sliding groove.

[0007] Furthermore, the snap-fit ​​assembly includes an electromagnet installed inside the threaded block, a snap-fit ​​block slidably connected inside the threaded block, a magnet block fixedly connected to one side of the snap-fit ​​block, two first springs fixedly connected to one side of the snap-fit ​​block, and the other end of the first springs fixedly connected to the inner wall of the threaded block.

[0008] Furthermore, the damping assembly includes an L-shaped slider slidably connected within the threaded block, with an inclined surface on one side of the L-shaped slider, a second spring fixedly connected to one side of the L-shaped slider, and the other end of the second spring fixedly connected to the inner wall of the threaded block, and a rubber block fixedly connected to one side of the L-shaped slider.

[0009] Furthermore, the sliding assembly includes a U-shaped support plate fixedly connected to the support frame, a sliding plate slidably connected inside the U-shaped support plate, a lifting plate fixedly connected to one side of the sliding plate, a connecting frame fixedly connected to one side of the lifting plate, and a locking block engaging with the connecting frame.

[0010] Furthermore, the detection component includes a limiting rod fixedly connected inside the lifting plate, a limiting block slidably connected to the outer wall of the limiting rod, a third spring fixedly connected to the bottom of the limiting block, and the other end of the third spring fixedly connected to the inner wall of the lifting plate. A limiting frame is fixedly connected inside the lifting plate, a pressure sensor is installed inside the limiting frame, a fourth spring is fixedly connected to one side of the pressure sensor, and a pressure block is fixedly connected to the other end of the fourth spring. The pressure block is slidably connected to the limiting frame, and a mounting plate is fixedly connected to one side of the limiting block. The leg pressing rod is fixedly connected to the mounting plate.

[0011] Furthermore, the buffer assembly includes a fixed cylinder fixedly connected to the U-shaped support plate, a fifth spring fixedly connected inside the fixed cylinder, and a sliding column fixedly connected to the other end of the fifth spring. The sliding column is slidably connected to the fixed cylinder, and a rubber pad is fixedly connected to one end of the sliding column.

[0012] Furthermore, the adjustment assembly includes an electric push rod fixedly connected within the support frame, and a lifting rod fixedly connected to the output end of the electric push rod, with the lifting rod slidably connected to the support frame.

[0013] Furthermore, the protective assembly includes a crossbar disposed at one end of the lifting rod, an arc-shaped rod fixedly connected to one end of the crossbar, and a second sponge pad fixedly connected to the outer wall of both the crossbar and the arc-shaped rod.

[0014] Furthermore, the crossbar is internally threaded with a screw rod, which is threadedly connected to the lifting rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the coordination between the lifting component, the sliding component and the leg press bar, the height of the leg press bar can be flexibly adjusted according to the user's height, training stage and leg press needs, so as to realize multi-stage leg press training and effectively improve the adaptability of the device to different people and different training intensities. By coordinating the detection component, locking component, damping component, and buffering component, the emergency disengagement procedure can be automatically activated when the user is unable to disengage due to training exhaustion. The detection component judges the training status and timeout situation, enabling the locking component to unlock quickly. The damping component and buffering component form a double buffer through mechanical linkage and physical compression, avoiding the inertial impact caused by the rapid drop of the leg press bar. This not only ensures the safety of disengagement when exhausted, but also prevents leg muscles and joints from being damaged by sudden pulling or impact. By coordinating the detection components, controller, and alarm, it is easy to control the training time. The training time can be preset before training, and the alarm will automatically sound after the time is reached. If the user actively removes his leg, the detection component can provide real-time feedback on the non-training status and automatically cancel the alarm through the controller, without the need for manual operation. By adjusting the components and the protective components together, users can flexibly adjust the support position and leaning angle of the protective components according to their own height and the height of the leg press bar. The curved bar of the protective components adapts to the curve of the human waist or back, forming a wraparound support, which reduces the risk of losing balance and falling when pressing the legs, and also reduces the exertion burden on the core muscles, making long-term leg press training stable and comfortable. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall side cross-sectional structure of the present invention; Figure 3 for Figure 2 Enlarged view of point A; Figure 4 for Figure 3 Enlarged view of point B; Figure 5 for Figure 3 Enlarged view of point C; Figure 6 This is a partial structural schematic diagram of the present invention; Figure 7 for Figure 6 Enlarged view of point D; Figure 8 for Figure 6 Enlarged view of point E; Figure 9 for Figure 6 Enlarged view at point F; Figure 10 This is a partial side view of the structure of the present invention; Figure 11 for Figure 10 Enlarged view of point G.

[0017] In the diagram: 1. Support frame; 11. Controller; 2. Lifting assembly; 21. Servo motor; 22. Threaded rod; 23. Threaded block; 24. Slide groove; 3. Snap-fit ​​assembly; 31. Electromagnet; 32. Snap-fit ​​block; 33. Magnetic block; 34. First spring; 4. Damping assembly; 41. L-shaped slider; 42. Inclined surface; 43. Second spring; 44. Rubber block; 5. Sliding assembly; 51. U-shaped support plate; 52. Slide plate; 53. Lifting plate; 54. Connecting frame; 6. Detection assembly; 61. 62. Limiting rod; 63. Limiting block; 64. Third spring; 65. Limiting frame; 66. Pressure sensor; 67. Fourth spring; 68. Pressure block; 79. Mounting plate; 80. Leg pressing rod; 81. First sponge sleeve; 82. Buffer assembly; 83. Fixed cylinder; 84. Fifth spring; 85. Sliding column; 86. Rubber pad; 97. Adjusting assembly; 98. Electric push rod; 99. Lifting rod; 10. Protective assembly; 100. Crossbar; 101. Arc rod; 102. Second sponge pad; 20. Screw. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] To address the technical issue of leg muscle fatigue and difficulty in emergency release during prolonged leg-pressing exercises, such as... Figures 1-11 As shown, the following preferred technical solutions are provided: A multi-stage leg-pressing device for sports training includes a support frame 1, which supports and fixes various components. A controller 11 is located on one side of the support frame 1, controlling various electrical components. An alarm is located on one side of the controller 11, which can sound an alarm after training time has elapsed. The alarm is existing technology and is not shown in the figure. Two lifting components 2 are arranged opposite each other inside the support frame 1. The lifting components 2 can adjust the height of the leg-pressing structure, facilitating multi-stage leg-pressing training according to usage needs and improving the adaptability of the device. Each lifting component 2 contains a locking component 3 and a retaining element. The damping component 4 and the support frame 1 have two sliding components 5 arranged opposite each other. The locking component 3 is locked to the sliding component 5. The sliding component 5 has a detection component 6. The detection component 6 has a leg press bar 7 on one side. The detection component 6 can easily detect whether the user is training through the leg press bar 7. The outer wall of the leg press bar 7 is fixedly connected to a first sponge sleeve 71. The first sponge sleeve 71 can easily cushion and improve the user's training comfort. Both sliding components 5 have a buffer component 8. The damping component 4 and the buffer component 8 can buffer during emergency disengagement to avoid the impact of rapid descent and injury to the user's body.

[0020] During use, the controller 11 causes the two lifting components 2 to move the sliding component 5 up and down, so that the detection component 6, the leg press bar 7 and the first sponge sleeve 71 move up and down synchronously. This allows the height of the leg press bar 7 to be adjusted according to the user's needs, enabling multi-stage leg press training. Before training, the user can set the training time through the controller 11. Then, the user places their leg on the leg press bar 7 to perform leg press training, causing the leg press bar 7 to move the detection component 6, thus determining that the training device is in training mode. When the training time is reached, the alarm will sound.

[0021] Scenario 1: When the user removes their leg from the leg press bar 7, the detection component 6 determines that the training device is in an untrained state, and the alarm is canceled by the controller 11. This allows the user to turn off the alarm without having to manually operate the controller 11, saving extra steps, avoiding unnecessary continuous noise interference from the alarm, reducing redundant operations in the training scenario, and improving the overall user experience.

[0022] Scenario 2: If the user fails to remove their leg and the detection time of the detection component 6 exceeds the safe time after the alarm sounds, the emergency detachment procedure is immediately activated. The controller 11 causes the locking component 3 to disengage from the sliding component 5. Subsequently, the sliding component 5 and the leg-pressing bar 7 fall under the pressure and gravity of the user's leg. This allows the leg-pressing bar 7 to automatically descend in the case of exhaustion, enabling the user to quickly detach from the leg-pressing bar 7 and avoiding muscle soreness or fiber damage caused by prolonged stretching. This ensures safe detachment in the case of exhaustion. Simultaneously, during the process of the locking component 3 disengaging from the sliding component 5, the linkage damping component 4 adheres to the inner wall of the lifting component 2. At the same time, the sliding component 5 gradually squeezes the buffer component 8 during its descent to provide cushioning. There is no need to add an additional complex active deceleration mechanism. The dual cushioning achieved through mechanical linkage and physical compression can prevent the descent speed from becoming uncontrollable, control the descent speed of the leg-pressing bar 7, and avoid inertial impact caused by rapid descent. This further protects the user's leg muscles and joints and improves the safety protection effect during emergency detachment.

[0023] The support frame 1 has two adjustable components 9 arranged opposite each other. One end of each adjustable component 9 is equipped with a protective component 10. During use, the two adjustable components 9 drive the protective component 10 to rise and fall, allowing the user to lean against it. The user can flexibly adjust the support position of the protective component 10 according to their own height and the adjustable height of the leg press bar 7, and quickly find a stable and comfortable leaning angle. This provides targeted stable support for the user, reduces the risk of body imbalance and falling during leg presses, and reduces the burden on the core muscles, improving the stability and comfort of long-term leg press training.

[0024] like Figures 2-3 , Figure 5 and Figures 10-11 As shown, the lifting assembly 2 includes a servo motor 21 installed in the support frame 1. The output end of the servo motor 21 is fixedly connected to a threaded rod 22. The threaded rod 22 is rotatably connected to the inner wall of the support frame 1. A threaded block 23 is threadedly connected to the outer wall of the threaded rod 22. A sliding groove 24 is provided on one side of the support frame 1. The threaded block 23 is slidably connected to the sliding groove 24, which can limit the movement of the threaded block 23.

[0025] like Figure 3 , Figure 5 and Figures 10-11 As shown, the snap-fit ​​assembly 3 includes an electromagnet 31 installed in the threaded block 23, a snap-fit ​​block 32 slidably connected in the threaded block 23, a magnet block 33 fixedly connected to one side of the snap-fit ​​block 32, and two first springs 34 fixedly connected to one side of the snap-fit ​​block 32, with the other end of the first springs 34 fixedly connected to the inner wall of the threaded block 23.

[0026] like Figure 11As shown, the damping assembly 4 includes an L-shaped slider 41 that is slidably connected to the threaded block 23. An inclined surface 42 is provided on one side of the L-shaped slider 41. A second spring 43 is fixedly connected to one side of the L-shaped slider 41, and the other end of the second spring 43 is fixedly connected to the inner wall of the threaded block 23. A rubber block 44 is fixedly connected to one side of the L-shaped slider 41. The rubber block 44 is connected to the L-shaped slider 41 by bolts, which can be easily disassembled and replaced.

[0027] like Figures 1-8 As shown, the sliding component 5 includes a U-shaped support plate 51 fixedly connected to the support frame 1, a slide plate 52 slidably connected inside the U-shaped support plate 51, a lifting plate 53 fixedly connected to one side of the slide plate 52, a connecting frame 54 fixedly connected to one side of the lifting plate 53, and a locking block 32 engaging with the connecting frame 54.

[0028] like Figure 1 and Figures 3-4 As shown, the detection component 6 includes a limiting rod 61 fixedly connected to the lifting plate 53. A limiting block 62 is slidably connected to the outer wall of the limiting rod 61. A third spring 63 is fixedly connected to the bottom of the limiting block 62, and the other end of the third spring 63 is fixedly connected to the inner wall of the lifting plate 53. A limiting frame 64 is fixedly connected inside the lifting plate 53. A pressure sensor 65 is installed inside the limiting frame 64. The pressure sensor 65 can detect the pressure signal transmitted by the limiting block 62 through the pressure block 67 in real time, accurately determine whether the device is in the training state, and provide signal support for the alarm cancellation and emergency exit procedure triggering. During initial calibration, the preload of the fourth spring 66 is adjusted. The initial position of the force or pressure block 67 within the limiting frame 64 ensures that the sensor has no signal output when not in training, and can trigger detection during training to ensure detection accuracy. A fourth spring 66 is fixedly connected to one side of the pressure sensor 65, and a pressure block 67 is fixedly connected to the other end of the fourth spring 66. The pressure block 67 is slidably connected to the limiting frame 64. A mounting plate 68 is fixedly connected to one side of the limiting block 62, and the leg pressing rod 7 is fixedly connected to the mounting plate 68. When not in training, the elastic force of the third spring 63 can support the limiting block 62, the mounting plate 68, and the leg pressing rod 7, so that the top of the limiting block 62 is in contact with the inner wall of the lifting plate 53. At this time, the pressure block 67 does not contact the limiting block 62.

[0029] like Figure 6 and Figure 8As shown, the buffer assembly 8 includes a fixed cylinder 81 fixedly connected to the U-shaped support plate 51. A fifth spring 82 is fixedly connected inside the fixed cylinder 81, and a sliding column 83 is fixedly connected to the other end of the fifth spring 82. The sliding column 83 is slidably connected to the fixed cylinder 81. A rubber pad 84 is fixedly connected to one end of the sliding column 83. The rubber pad 84 can prevent the lifting plate 53 from rigidly colliding with the sliding column 83. It can not only help the buffer assembly 8 improve the overall buffering effect and reduce the impact force on the device components, but also further weaken the indirect impact of the falling inertia on the user's legs, improve the safety protection and comfort of use during emergency escape. The rubber pad 84 corresponds to the vertical position of the lifting plate 53, which can facilitate better buffering.

[0030] During use, the controller 11 drives the servo motor 21 to rotate the threaded rod 22, which in turn causes the threaded block 23 to lift and lower the locking assembly 3, damping assembly 4, and sliding assembly 5. This allows the slide plate 52 to slide within the U-shaped support plate 51, simultaneously lifting and lowering the detection assembly 6, leg press bar 7, and first sponge sleeve 71. This allows the height of the leg press bar 7 to be adjusted according to user needs, enabling multi-stage leg press training. Before training, the user can set the training duration via the controller 11. The user then places their leg on the leg press bar 7 for leg press training, causing the leg press bar 7 to move the mounting plate 68 downwards. This causes the limit block 62 to move downwards under the limit of the limit rod 61, compressing the third spring 63 until the limit block 62 compresses the fourth spring 66, allowing the pressure sensor 65 to detect and determine that the training device is in training mode. When the training duration is reached, the alarm sounds.

[0031] Scenario 1: When the user removes their leg from the leg press bar 7, the pressure sensor 65 determines that the training device is in an untrained state. This causes the alarm to be canceled via the controller 11, allowing the user to turn off the alarm without having to manually operate the controller 11. This eliminates extra steps, avoids unnecessary continuous noise interference from the alarm, reduces redundant operations in the training scenario, and improves the overall user experience.

[0032] Scenario 2: If the user fails to remove their leg, and the detection time of the pressure sensor 65 exceeds the safe time after the alarm sounds, the emergency disengagement procedure is immediately activated. The controller 11 causes the electromagnet 31 to attract the magnet 33, which in turn causes the locking block 32 to disengage from the connecting frame 54, compressing the first spring 34. Subsequently, the sliding assembly 5 and the leg-pressing bar 7 descend using the pressure and weight of the user's leg. This allows the leg-pressing bar 7 to automatically descend in cases of exhaustion, enabling the user to quickly disengage from the leg-pressing bar 7 and preventing muscle soreness or fiber damage caused by prolonged stretching. This ensures safe disengagement in cases of exhaustion. Simultaneously, the locking block 32 disengages from the connecting frame 54. During the snap-fitting process of the connecting frame 54, the locking block 32 will push the L-shaped slider 41 to move through the inclined surface 42, so that the rubber block 44 fits against the inner wall of the slide groove 24 and squeezes the second spring 43. At the same time, during the falling process, the sliding component 5 will gradually squeeze the fifth spring 82 through the rubber pad 84 and the sliding column 83 for buffering. There is no need to add a complex active deceleration mechanism. The dual buffering is achieved through mechanical linkage and physical compression, which can avoid the situation of uncontrolled descent speed, control the falling speed of the leg pressing bar 7, avoid the inertial impact caused by rapid falling, further protect the user's leg muscles and joints, and improve the safety protection effect during emergency escape.

[0033] To address the technical problem of users finding it difficult to protect themselves during training, such as... Figures 1-2 , Figure 6 and Figure 9 As shown, the following preferred technical solutions are provided: like Figure 6 and Figure 9 As shown, the adjustment component 9 includes an electric push rod 91 fixedly connected to the support frame 1, and a lifting rod 92 fixedly connected to the output end of the electric push rod 91. The lifting rod 92 is slidably connected to the support frame 1.

[0034] like Figures 1-2 , Figure 6 and Figure 9 As shown, the protective component 10 includes a crossbar 101 disposed at one end of the lifting rod 92. An arc-shaped rod 102 is fixedly connected to one end of the crossbar 101. The arc-shaped rod 102 can adapt to the curve of the human waist or back to form a wraparound support structure. It can accurately fit the user's body contour, avoid local force concentration when leaning, and enhance the wrapping and stability of the support. Compared with the problems of poor fit and limited support range of the straight support structure in the prior art, the protection is more targeted and can further reduce the risk of the body tilting to the sides during leg press training. A second sponge pad 103 is fixedly connected to the outer wall of both the crossbar 101 and the arc-shaped rod 102. The second sponge pad 103 can conveniently cushion and improve the comfort during protection.

[0035] like Figure 9As shown, the crossbar 101 is internally threaded with a screw 20, which is threadedly connected to the lifting rod 92, allowing for easy assembly and disassembly of the crossbar 101 to adapt to different training needs.

[0036] During use, the electric push rod 91 drives the lifting rod 92, the horizontal bar 101, and the curved bar 102 to rise and fall, allowing the user to lean against them comfortably. The user can flexibly adjust the support position of the horizontal bar 101 and the curved bar 102 according to their own height and the adjustable height of the leg press bar 7, quickly find a stable and comfortable leaning angle, provide targeted stable support for the user, reduce the risk of body imbalance and falling during leg presses, reduce the exertion burden on the core muscles, and improve the stability and comfort of long-term leg press training.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-section leg raising device for sports training, comprising a support frame (1), one side of the support frame (1) being provided with a controller (11), characterized in that: The support frame (1) has two lifting components (2) arranged opposite each other. Each of the two lifting components (2) has a snap-fit ​​component (3) and a damping component (4). The support frame (1) has two sliding components (5) arranged opposite each other. The snap-fit ​​component (3) snaps into the sliding component (5). The sliding component (5) has a detection component (6) arranged inside. The detection component (6) has a leg press rod (7) on one side. The leg press rod (7) has a first sponge sleeve (71) fixedly connected to the outer wall of the leg press rod (7). Each of the two sliding components (5) has a buffer component (8). The support frame (1) has two adjusting components (9) arranged opposite each other. One end of the adjusting component (9) has a protective component (10).

2. The multi-sectioned leg raising device for sports training according to claim 1, characterized in that: The lifting assembly (2) includes a servo motor (21) installed in the support frame (1). The output end of the servo motor (21) is fixedly connected to a threaded rod (22). The threaded rod (22) is rotatably connected to the inner wall of the support frame (1). A threaded block (23) is threadedly connected to the outer wall of the threaded rod (22). A sliding groove (24) is provided on one side of the support frame (1). The threaded block (23) is slidably connected to the sliding groove (24).

3. The multi-sectioned leg raising device for sports training according to claim 2, wherein: The snap-fit ​​assembly (3) includes an electromagnet (31) installed in the threaded block (23), a snap-fit ​​block (32) slidably connected in the threaded block (23), a magnet block (33) fixedly connected to one side of the snap-fit ​​block (32), and two first springs (34) fixedly connected to one side of the snap-fit ​​block (32), and the other end of the first springs (34) is fixedly connected to the inner wall of the threaded block (23).

4. The multi-sectioned leg raising device for sports training according to claim 2, wherein: The damping assembly (4) includes an L-shaped slider (41) slidably connected to the threaded block (23). An inclined surface (42) is provided on one side of the L-shaped slider (41). A second spring (43) is fixedly connected to one side of the L-shaped slider (41), and the other end of the second spring (43) is fixedly connected to the inner wall of the threaded block (23). A rubber block (44) is fixedly connected to one side of the L-shaped slider (41).

5. The multi-sectioned leg raising device for sports training according to claim 3, wherein: The sliding component (5) includes a U-shaped support plate (51) fixedly connected to the support frame (1), a sliding plate (52) is slidably connected inside the U-shaped support plate (51), a lifting plate (53) is fixedly connected to one side of the sliding plate (52), a connecting frame (54) is fixedly connected to one side of the lifting plate (53), and a locking block (32) is engaged with the connecting frame (54).

6. The multi-sectioned leg raising device for sports training according to claim 5, characterized in that: The detection component (6) includes a limiting rod (61) fixedly connected to the lifting plate (53), a limiting block (62) slidably connected to the outer wall of the limiting rod (61), a third spring (63) fixedly connected to the bottom of the limiting block (62), and the other end of the third spring (63) fixedly connected to the inner wall of the lifting plate (53). A limiting frame (64) is fixedly connected inside the lifting plate (53), a pressure sensor (65) is installed inside the limiting frame (64), a fourth spring (66) is fixedly connected to one side of the pressure sensor (65), and a pressure block (67) is fixedly connected to the other end of the fourth spring (66). The pressure block (67) is slidably connected to the limiting frame (64), an installation plate (68) is fixedly connected to one side of the limiting block (62), and a leg pressing rod (7) is fixedly connected to the installation plate (68).

7. The multi-sectioned leg raising device for sports training according to claim 5, wherein: The buffer assembly (8) includes a fixed cylinder (81) fixedly connected to the U-shaped support plate (51), a fifth spring (82) fixedly connected inside the fixed cylinder (81), and a sliding column (83) fixedly connected to the other end of the fifth spring (82). The sliding column (83) is slidably connected to the fixed cylinder (81), and a rubber pad (84) is fixedly connected to one end of the sliding column (83).

8. The multi-sectioned leg compression device for sports training according to claim 1, characterized in that: The adjustment component (9) includes an electric push rod (91) fixedly connected to the support frame (1), and a lifting rod (92) fixedly connected to the output end of the electric push rod (91). The lifting rod (92) is slidably connected to the support frame (1).

9. The multi-sectioned leg compression device for sports training according to claim 8, characterized in that: The protective component (10) includes a crossbar (101) disposed at one end of the lifting rod (92), an arc rod (102) fixedly connected to one end of the crossbar (101), and a second sponge pad (103) fixedly connected to the outer wall of both the crossbar (101) and the arc rod (102).

10. A multi-segment leg-pressing device for sports training according to claim 9, characterized in that: The crossbar (101) is internally threaded with a screw (20), and the screw (20) is threadedly connected to the lifting rod (92).

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